We present Κ-abstraction as a method for automatically generating small discrete belief spaces for partially observable Markov decision problems (POMDPs). This permits direct application of existing reinforcement learning methods to POMDPs. We show results from applying these methods to a 256 state POMDP, and discuss the types of problems for which the method is suitable. Topic: Algorithms and ...

The DynaLearn interactive learning environment allows learners to construct their conceptual ideas and investigate the logical consequences of those ideas. By building and simulating causal models, students develop an understanding of how systems work. The DynaLearn interactive learning environment introduces six modes of interaction, called learning spaces. By working in a particular learning ...

We introduce a framework for qualitative reasoning about directions in high-dimensional spaces, called EER, where our main motivation is to develop a form of commonsense reasoning about semantic spaces. The proposed framework is, however, more general; we show how qualitative spatial reasoning about points with several existing calculi can be reduced to the realisability problem for EER (or REE...

Qualitative probabilistic reasoning in a Bayesian network often reveals tradeoos: relationships that are ambiguous due to competing qualitative innuences. We present two techniques that combine qualitative and numeric probabilistic reasoning to resolve such tradeoos, inferring the qualitative relationship between nodes in a Bayesian network. The rst approach incrementally marginalizes nodes in ...

This paper reports "work in progress" on a project which I've titled, "The Spaces of Transnational Cultures". The aim of the project is to build on, but be methodologically different from, my earlier research on the architecture and urbanism of colonial and postcolonial cities in which the principal objective had been to demonstrate the inherently constitutive relationship between the political...

decreasing qualitative aspects of residential environments is a real problem in recent public housing of kerman. this article is concentrated on surveying the impact of in-between spaces on residential environments quality (req), to evaluate different kinds of it and to determine interrelation of two main components: residents individual characteristics and characteristics of in-between spaces....